Erwin Chargaff gave four “rules,” known as parity rule for duplex DNA.

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#Id: 6963

#Unit 8. Inheritance Biology

It can be identified by G banding chromosome. 

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#Id: 6251

#Unit 8. Inheritance Biology

However, these mutations also interfere with the synthesis of melanin pigment, lightening the color of the hair; therefore, individuals with PKU frequently have light brown or blond hair.

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#Id: 3627

#Unit 3. Fundamental Processes

Mitochondria have their own tRNAs, so their code variations do not affectthe much larger cellular genome.

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#Id: 9256

#Unit 6. System Physiology – Plant

The concentration at which net change in CO2 is 0 defines the CO2 compensation point and reflects the CO2 concentration at which the rate of gross photosynthetic CO2  uptake exactly equals the respiration rate.

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#Id: 7989

#Unit 10. Ecological Principles

Marine turtles and seabirds ingest seawater when consuming prey or drink it, having no access to fresh water.

These animals have specialized structures called salt glands located around the eyes and nostrils.